Troubleshooting The Cooling System On The Srx1400 Services Gateway - Juniper SRX1400 Hardware Manual

NOTE: If the SRX1400 Services Gateway is not powering on and the power supply LED is
blinking, press the Power button to power on the device.
If you cannot determine the cause of the problem or need additional assistance while troubleshooting
a services gateway, open a support case using the Case Manager link at:
, or call 1-888-314-JTAC (within the United States) or 1-408-745-9500.
RELATED DOCUMENTATION
SRX1400 Services Gateway AC Power Supply | 58
SRX1400 Services Gateway DC Power Supply | 60
Replacing an AC Power Supply on the SRX1400 Services Gateway | 234
Replacing AC Power Supply Cables on the SRX1400 Services Gateway | 233
Replacing a DC Power Supply on the SRX1400 Services Gateway | 237
Replacing DC Power Supply Cables on the SRX1400 Services Gateway | 241

Troubleshooting the Cooling System on the SRX1400 Services Gateway

The services gateway cooling system consists of a fan tray and an air filter, both of which are located in
the side of the chassis and plugged in from the rear of the chassis. The fan tray contains two fans. The fan
tray provides cooling to the components installed in the device.
An air filter installed in the rear of the chassis helps keep dust and other particles from entering the cooling
system. To function properly, the entire cooling system requires an unobstructed airflow and proper
clearance around the site, as described in
on page 69.
During normal operation, the fans in the fan tray function at less than full speed. The Routing Engine
constantly monitors the temperatures detected by sensors and services gateway components, adjusting
the speed of the fans as necessary. If the services gateway temperature exceeds the acceptable maximum,
the Routing Engine turns off the power supplies.
Table 46 on page 189 describes the alarm conditions and corrective actions for SRX1400 Services Gateway
cooling system.
"Site Preparation Checklist for the SRX1400 Services Gateway"
https://www.juniper.net/support/
188